| 基于数字串内容识别的用户验证方法研究 |
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| 引用本文： | 刘振安,王晋军,孙捷. 基于数字串内容识别的用户验证方法研究[J]. 测控技术, 2005, 24(9): 7-8,14 |
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| 作者姓名： | 刘振安 王晋军 孙捷 |
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| 作者单位： | 中国科学技术大学,自动化系,安徽,合肥,230027;中国科学技术大学,自动化系,安徽,合肥,230027;中国科学技术大学,自动化系,安徽,合肥,230027 |
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| 摘 要： | 提出一种新的说话人验证方法.本方法通过对用户登录的语音数字串的内容进行识别来验证用户身份.而且采取计算后验相似度比例对数LLR(log-likelihood ratio)的措施,进一步提高系统的可靠性和识别准确率.提出的方法与目前普遍使用的说话人验证方法相比,本方法所需要的训练语音相对较少,对环境的要求也比较低,因而注册使用更加方便,保密性更高.通过实验,系统的合法用户通过率达到98.4%,非法用户拒识率达到100%.
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| 关 键 词： | 内容识别 说话人验证 相似度比例对数 |
| 文章编号： | 1000-8829（2005）09-0007-02 |
| 收稿时间： | 2005-03-21 |
| 修稿时间： | 2005-03-21 |
Study on the Number Serials Content Verification for User Authentication |
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| LIU Zhen-An,WANG Jin-jun,Sun Jie. Study on the Number Serials Content Verification for User Authentication[J]. Measurement & Control Technology, 2005, 24(9): 7-8,14 |
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| Authors: | LIU Zhen-An WANG Jin-jun Sun Jie |
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| Affiliation: | Automation Department, University of Science and Technology of China, Hefei 230027, China |
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| Abstract: | A new method for speaker authentication is presented, which recognizes user authentication by recognising the serials of number speaked by user and compareing it with the user registed data. In addition, the reliability and veracity by calculating the log-likelihood ratio are increased. Compared with common method for recognizing user authentication, this method needs less training, and more convenience for use, and can improve the reliability further. The result of simulation shows the pass rate of the legality user is over 98.4% and the reject rate of the falsity user is 100%. |
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| Keywords: | content verification speaker authentication log-likelihood ratio |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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